What Tool Removes Thinset

Electric chipping hammers with a chisel or electric hammer drills with long and wide blades are the tools of choice for scraping up thinset. If the thinset is bonded too strongly to the concrete, though, then a grinder with a diamond face is the more reliable option.

Will a sander remove Thinset?

3 Answers. Thinset mortar is usually fairly soft. For that small area you can probably knock down the lumps with a belt sander and coarse grit belt. You don’t need to entirely remove the old mortar if it’s well bonded.

Will a pressure washer remove thinset?

A power washer will only remove loose mortar, and it may wet the masonry and cause the internal metal anchors to corrode if the building is of curtain wall construction. … Once the mortar is weakened, a hammer and chisel or a pneumatic chisel can remove the mortar.